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x=1
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\left(-1-3x\right)\left(2x-1\right)+\left(3x-1\right)\left(1+x\right)=x\times 6\left(x-1\right)
Variable x cannot be equal to any of the values -\frac{1}{3},0,\frac{1}{3} since division by zero is not defined. Multiply both sides of the equation by x\left(3x-1\right)\left(3x+1\right), the least common multiple of x-3x^{2},3x^{2}+x,9x^{2}-1.
x+1-6x^{2}+\left(3x-1\right)\left(1+x\right)=x\times 6\left(x-1\right)
Use the distributive property to multiply -1-3x by 2x-1 and combine like terms.
x+1-6x^{2}+2x+3x^{2}-1=x\times 6\left(x-1\right)
Use the distributive property to multiply 3x-1 by 1+x and combine like terms.
3x+1-6x^{2}+3x^{2}-1=x\times 6\left(x-1\right)
Combine x and 2x to get 3x.
3x+1-3x^{2}-1=x\times 6\left(x-1\right)
Combine -6x^{2} and 3x^{2} to get -3x^{2}.
3x-3x^{2}=x\times 6\left(x-1\right)
Subtract 1 from 1 to get 0.
3x-3x^{2}=6x^{2}-x\times 6
Use the distributive property to multiply x\times 6 by x-1.
3x-3x^{2}=6x^{2}-6x
Multiply -1 and 6 to get -6.
3x-3x^{2}-6x^{2}=-6x
Subtract 6x^{2} from both sides.
3x-9x^{2}=-6x
Combine -3x^{2} and -6x^{2} to get -9x^{2}.
3x-9x^{2}+6x=0
Add 6x to both sides.
9x-9x^{2}=0
Combine 3x and 6x to get 9x.
x\left(9-9x\right)=0
Factor out x.
x=0 x=1
To find equation solutions, solve x=0 and 9-9x=0.
x=1
Variable x cannot be equal to 0.
\left(-1-3x\right)\left(2x-1\right)+\left(3x-1\right)\left(1+x\right)=x\times 6\left(x-1\right)
Variable x cannot be equal to any of the values -\frac{1}{3},0,\frac{1}{3} since division by zero is not defined. Multiply both sides of the equation by x\left(3x-1\right)\left(3x+1\right), the least common multiple of x-3x^{2},3x^{2}+x,9x^{2}-1.
x+1-6x^{2}+\left(3x-1\right)\left(1+x\right)=x\times 6\left(x-1\right)
Use the distributive property to multiply -1-3x by 2x-1 and combine like terms.
x+1-6x^{2}+2x+3x^{2}-1=x\times 6\left(x-1\right)
Use the distributive property to multiply 3x-1 by 1+x and combine like terms.
3x+1-6x^{2}+3x^{2}-1=x\times 6\left(x-1\right)
Combine x and 2x to get 3x.
3x+1-3x^{2}-1=x\times 6\left(x-1\right)
Combine -6x^{2} and 3x^{2} to get -3x^{2}.
3x-3x^{2}=x\times 6\left(x-1\right)
Subtract 1 from 1 to get 0.
3x-3x^{2}=6x^{2}-x\times 6
Use the distributive property to multiply x\times 6 by x-1.
3x-3x^{2}=6x^{2}-6x
Multiply -1 and 6 to get -6.
3x-3x^{2}-6x^{2}=-6x
Subtract 6x^{2} from both sides.
3x-9x^{2}=-6x
Combine -3x^{2} and -6x^{2} to get -9x^{2}.
3x-9x^{2}+6x=0
Add 6x to both sides.
9x-9x^{2}=0
Combine 3x and 6x to get 9x.
-9x^{2}+9x=0
All equations of the form ax^{2}+bx+c=0 can be solved using the quadratic formula: \frac{-b±\sqrt{b^{2}-4ac}}{2a}. The quadratic formula gives two solutions, one when ± is addition and one when it is subtraction.
x=\frac{-9±\sqrt{9^{2}}}{2\left(-9\right)}
This equation is in standard form: ax^{2}+bx+c=0. Substitute -9 for a, 9 for b, and 0 for c in the quadratic formula, \frac{-b±\sqrt{b^{2}-4ac}}{2a}.
x=\frac{-9±9}{2\left(-9\right)}
Take the square root of 9^{2}.
x=\frac{-9±9}{-18}
Multiply 2 times -9.
x=\frac{0}{-18}
Now solve the equation x=\frac{-9±9}{-18} when ± is plus. Add -9 to 9.
x=0
Divide 0 by -18.
x=-\frac{18}{-18}
Now solve the equation x=\frac{-9±9}{-18} when ± is minus. Subtract 9 from -9.
x=1
Divide -18 by -18.
x=0 x=1
The equation is now solved.
x=1
Variable x cannot be equal to 0.
\left(-1-3x\right)\left(2x-1\right)+\left(3x-1\right)\left(1+x\right)=x\times 6\left(x-1\right)
Variable x cannot be equal to any of the values -\frac{1}{3},0,\frac{1}{3} since division by zero is not defined. Multiply both sides of the equation by x\left(3x-1\right)\left(3x+1\right), the least common multiple of x-3x^{2},3x^{2}+x,9x^{2}-1.
x+1-6x^{2}+\left(3x-1\right)\left(1+x\right)=x\times 6\left(x-1\right)
Use the distributive property to multiply -1-3x by 2x-1 and combine like terms.
x+1-6x^{2}+2x+3x^{2}-1=x\times 6\left(x-1\right)
Use the distributive property to multiply 3x-1 by 1+x and combine like terms.
3x+1-6x^{2}+3x^{2}-1=x\times 6\left(x-1\right)
Combine x and 2x to get 3x.
3x+1-3x^{2}-1=x\times 6\left(x-1\right)
Combine -6x^{2} and 3x^{2} to get -3x^{2}.
3x-3x^{2}=x\times 6\left(x-1\right)
Subtract 1 from 1 to get 0.
3x-3x^{2}=6x^{2}-x\times 6
Use the distributive property to multiply x\times 6 by x-1.
3x-3x^{2}=6x^{2}-6x
Multiply -1 and 6 to get -6.
3x-3x^{2}-6x^{2}=-6x
Subtract 6x^{2} from both sides.
3x-9x^{2}=-6x
Combine -3x^{2} and -6x^{2} to get -9x^{2}.
3x-9x^{2}+6x=0
Add 6x to both sides.
9x-9x^{2}=0
Combine 3x and 6x to get 9x.
-9x^{2}+9x=0
Quadratic equations such as this one can be solved by completing the square. In order to complete the square, the equation must first be in the form x^{2}+bx=c.
\frac{-9x^{2}+9x}{-9}=\frac{0}{-9}
Divide both sides by -9.
x^{2}+\frac{9}{-9}x=\frac{0}{-9}
Dividing by -9 undoes the multiplication by -9.
x^{2}-x=\frac{0}{-9}
Divide 9 by -9.
x^{2}-x=0
Divide 0 by -9.
x^{2}-x+\left(-\frac{1}{2}\right)^{2}=\left(-\frac{1}{2}\right)^{2}
Divide -1, the coefficient of the x term, by 2 to get -\frac{1}{2}. Then add the square of -\frac{1}{2} to both sides of the equation. This step makes the left hand side of the equation a perfect square.
x^{2}-x+\frac{1}{4}=\frac{1}{4}
Square -\frac{1}{2} by squaring both the numerator and the denominator of the fraction.
\left(x-\frac{1}{2}\right)^{2}=\frac{1}{4}
Factor x^{2}-x+\frac{1}{4}. In general, when x^{2}+bx+c is a perfect square, it can always be factored as \left(x+\frac{b}{2}\right)^{2}.
\sqrt{\left(x-\frac{1}{2}\right)^{2}}=\sqrt{\frac{1}{4}}
Take the square root of both sides of the equation.
x-\frac{1}{2}=\frac{1}{2} x-\frac{1}{2}=-\frac{1}{2}
Simplify.
x=1 x=0
Add \frac{1}{2} to both sides of the equation.
x=1
Variable x cannot be equal to 0.
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